function it_should_accept_a_visitor(RuleNode $rule, VisitorInterface $visitor)
{
$rule->accept($visitor)->shouldBeCalled();
$visitor->visitGrammar($this)->shouldBeCalled();
$this->accept($visitor);
}
function it_should_create_a_rule_from_a_node()
{
$ruleNode = new RuleNode('Foo', '"expression"', new RuleReferenceNode('Bar'));
$ruleCode = <<<EOS
protected function parseFoo()
{
\$_position = \$this->position;
if (isset(\$this->cache['Foo'][\$_position])) {
\$_success = \$this->cache['Foo'][\$_position]['success'];
\$this->position = \$this->cache['Foo'][\$_position]['position'];
\$this->value = \$this->cache['Foo'][\$_position]['value'];
return \$_success;
}
\$_success = \$this->parseBar();
\$this->cache['Foo'][\$_position] = array(
'success' => \$_success,
'position' => \$this->position,
'value' => \$this->value
);
if (!\$_success) {
\$this->report(\$_position, "expression");
}
return \$_success;
}
EOS;
$ruleNode->accept($this->getWrappedObject());
$this->getResult()->shouldBe($ruleCode);
}
public function visitRule(RuleNode $node)
{
$this->scope = array();
$this->results[] = <<<EOS
protected function parse{$node->getIdentifier()}()
{
\$_position = \$this->position;
if (isset(\$this->cache['{$node->getIdentifier()}'][\$_position])) {
\$_success = \$this->cache['{$node->getIdentifier()}'][\$_position]['success'];
\$this->position = \$this->cache['{$node->getIdentifier()}'][\$_position]['position'];
\$this->value = \$this->cache['{$node->getIdentifier()}'][\$_position]['value'];
return \$_success;
}
{$this->indent($this->getResult())}
\$this->cache['{$node->getIdentifier()}'][\$_position] = array(
'success' => \$_success,
'position' => \$this->position,
'value' => \$this->value
);
if (!\$_success) {
\$this->report(\$_position, {$node->getName()});
}
return \$_success;
}
EOS;
}